Amazon.com : Astell&Kern AK100 Mastering Quality Sound (MQS) Portable System : Electronics

The Astell&Kern AK100 is the ultimate portable high-fidelity audio system capable of studio Mastering Quality Sound (MQS) support and playback. MQS (24bit, 96kHz -192kHz) is considered as the digital music format with the most amount of information and co

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